Column 1 Column 2 Column 3 Column 4 0 8/31/2015 1,121,843 80,307 13.969430 1 8/14/2015 1,109,692 92,695 11.971433 2 7/31/2015 1,294,793 71,308 18.157752 3 7/15/2015 1,236,282 66,043 18.719350 4 6/30/2015 1,314,791 127,963 10.274775 5 6/15/2015 1,320,495 52,596 25.106377 6 5/29/2015 1,485,201 82,883 17.919248 7 5/15/2015 1,529,436 64,809 23.599130